Component identification 7
Item Description Function
6 Battery Charge LED
When the UPS is operating from utility power (the Power LED is green),
the Battery Charge LED indicates the approximate charge state of the
batteries:
Red—The batteries are beginning to charge.
Amber—The batteries are midway through charging.
Green—The batteries are fully charged.
When the UPS is operating on battery power during a blackout or severe
brownout (the Power LED is flashing green), the Battery Charge LED
indicates the approximate amount of remaining battery energy:
Red—The batteries have a low level of energy.
Amber—The batteries have a medium amount of energy.
Green—The batteries have a high amount of energy.
Periodically initiate a self-test ("Initiating a self-test" on page 16) to
determine the energy level of the batteries before a blackout or brownout
occurs.
7 Mute/Test button
Silences UPS alarms and initiates a self-test ("Initiating a self-test" on
page 16).
1
IMPORTANT: While in Standby mode, the UPS maintains the charge on the batteries, but no power is
available at the output receptacles. The UPS remains in Standby mode until an alternate mode is selected or
until utility power is removed.
UPS T750 NA/JPN rear panel
Item Description
1 Voltage configuration DIP switches
2 Serial communications port
3 USB communications port
4 Option slot
5 Network Transient Protector IN jack
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